If you move to Kemble Road you have no chance of getting children into Fairlawn but I would expect a reasonable chance of getting into Dalmain. Perrymount is another local school for Kemble Road and is a nice small primary from what I know.

The list of schools on http://www.foresthill.org.uk/schools.html is not a complete list, as it does not manage to include my primary or secondary school. Admittedly Elliot Bank is in SE26 (but then so is Sydenham School), but it does not include Forest Hill Secondary school either!